And looking a little further, commit ae6935ed7d42(Bionic commit
c40598d9e67c) was added per bug 1812123 for DPDK. In that bug, we
requested two commits:
b5679cebf780 ("vmbus: fix subchannel removal")
5e3c420dcca5 ("uio_hv_generic: set callbacks on open")
However, commit b5679cebf780 is a fix for commit ae6935ed7d42, so commit
ae6935ed7d42 was also included. That then led to this bug, because with
commit ae6935ed7d42, commit c967590457ca is now also needed.
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1823805
Title:
The 4.18.0-1015.15 Azure Kernel Panics Due to Missing Commit
Status in linux-azure package in Ubuntu:
New
Bug description:
The following commit was requested in the 18.04 Bionic kernel for Azure:
c967590457ca scsi: storvsc: Fix a race in sub-channel creation that can cause
panic
This commit was included when it was requested in bug 1805304.
However, the 18.04 Bionic kernel for Azure was based on the upstream
4.15 kernel at that time. The patch was applied to the 4.15 based
kernel as an Ubuntu SAUCE patch.
The 18.04 Bionic kernel for Azure has since been re-based to the 4.18
kernel. This requested commit was applied to mainline as of
v4.20-rc6. The patch was cc’d to upstream stable, but upstream 4.18
was EOL by that point. Due to this, the patch never made it into any
4.18 kernels, which is why it is now missing from 18.04, it was
rebased to 4.18.
This is a critical issue. The 4.18.0-1015 kernel immediately panics on boot
without this commit.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1823805/+subscriptions
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